Minute repeaters tend to be hand-wound, and for good reason. A rotor requires space, adds mass, and sits right where you don't want anything absorbing sound. Patek spent the late 1980s working around these problems, and the reference 5013 arrived in 1992 as a result. It was the first wristwatch to combine automatic winding, a minute repeater, a perpetual calendar, and a retrograde date, staying in production until around 2011.